System crash when using surv=T in cph
maxb wrote:
Can someone help me. I am very new to R. I am fitting a Cox model using Frank Harrell's cph as I want to produce a Nomogram. This is what I have done: Srv<- Surv(time,cens) f.cox<- cph(Srv~ v1+v2+v3+v4, x=T, y=T, surv=T)
This is not reproducible for us. Where are the data? What is cph? I presume the one from package Design?
As soon as I press enter, Windows XP crashes. If I remove surv=T, then it works. I have R version 2.9.0.
Have you updates all your packages? Which versions of survival and Design are you using? Is it really Windows that crashes, or just R? See http://cran.r-project.org/web/checks/check_results_Design.html to learn that even the newest version of Design produces WARNINGs. If you can send reproducible code to let R crash, please send it to the package maintainer of the involved packages. Best, Uwe Ligges
Is there a way of displaying the parameter estimates (ie beta coefficients) and HR when I type anova(f.cox) as this only displays the Chi squared and p-values. Any help or advise drawing a Nomogram will be appreciated. Thanks in advance Max